arse-up
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
A mistake or blunder; a cock-up.
Register: slang, vulgar
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “arse-up” mean?
A mistake or blunder; a cock-up.
Is “arse-up” formal or informal?
arse-up is generally slang, vulgar.